An Andy Warhol print late actor Dennis Hopper famously riddled with bullets has gone under the hammer for $302,500 (£210,670) at an auction in New York.The blue 1972 image of Chinese revolutionary Mao Zedong was among the 300 items handed over to Christie's auction house bosses from the Easy Rider's estate executors following his death from cancer last year (10). Hopper, who was close friends with Warhol, fired at the artwork twice one night after the actor became spooked and "mistook the portrait on his wall for Mao himself and shot at it", according to a Christie's spokesperson. The screen star showed the artist the damage and the pals decided to call it a collaboration. The print was only expected to raise $20,000 to $30,000 (£13,300 to £20,000) at Tuesday's (11Jan11) auction, but was snapped up by a mystery buyer at more than 10 times its estimated value. Another Warhol classic, a 1967 screenprint of Marilyn Monroe, also sold for more than expected, going for $206,500 (£137,670) - four times its estimate.